For many years, researchers had Greentown's No. 11 line confused with it's No. 75 line, simply because the No. 75 line was unknown. Both No. 11 and No. 75 are pressed patterns which imitate cut glass, but there are differences. No. 11 has raised dots, while No. 75 has raised points and No. 11 has raised linear areas which intersect to form an X, while No. 75 has half-round areas which have diamonds at the intersection. So far, No. 11 items are only known in Crystal.